When pigs fly means this..
What is something that will never happen?
Hit the books means this..
What is to study hard?
Go bananas means this..
What is become very excited (or angry)?
Cost an arm and a leg means this..
What is very expensive?
Once in a blue moon means this..
What is not very often?
It's raining cats and dogs means this..
what is raining heavily?
Piece of cake means this..
What is something is easy?
Break a leg means this..
What is good luck?
Kick the bucket means this..
What is die?
Add fuel to the fire means this..
What is make a bad situation worse?
Let the cat out of the bag means this..
What is to reveal a secret?
Bit off more than you can chew means this..
What is took on too much work?
Keep your chin up means this..
What is remain optimistic?
Cry over spilled milk means this..
What is complaining about something you cannot change?
Hit the nail on the head means this..
What is be exactly right?
Cat got your tongue means this..
What is being silent or quiet?
Throw in the towel means this..
What is to give up?
Break the ice means this..
What is start a friendly conversation?
Under the weather means this..
What is not feeling well?
The ball is in your court means this..
What is your turn to decide?
Smell a rat means this..
What is suspect something is wrong?
Chicken out means this..
What is to lose courage, (often at the last moment)?
Pull someone's leg means this..
What is joke or tease lightheartedly?
Barking up the wrong tree means this..
What is blaming the wrong person or idea?
Spill the beans means this..
What is tell a secret?